Claude Sonnet 5
Parameters
Undisclosed
Context Length
1M
Modality
Multimodal
Architecture
Undisclosed
License
Proprietary
Release Date
30 Jun 2026
Knowledge Cutoff
Jan 2026
API Pricing (per 1M)
Input: $2.00 · Output: $10.00
Evaluation Benchmarks
Rank
#25
| Benchmark | Score | Rank |
|---|---|---|
StackUnseen | 0.947 | 🥈 2 |
Agent Arena | high 0.08 | 8 |
Agentic Coding | max 0.59 | 11 |
Coding | max 0.81 | 12 |
Reasoning | max 0.89 | 13 |
Mathematics | max 0.93 | 13 |
General | max 0.76 | 21 |
LiveBench Average | max 0.76 | 21 |
Agentic Index | max 0.45 | 23 |
Web Development | high 1537 | 28 |
Intelligence Index | max 0.45 Standard 0.34 | 30 68 |
Data Analysis | max 0.72 | 32 |
Coding Index | max 0.71 high 0.66 | 33 51 |
General Text | high 1462 | 40 |
Rankings
Overall Rank
#25
Coding Rank
#14
About Claude Sonnet 5
Anthropic's Claude Sonnet 5 is built for agentic workflows, long-horizon coding, and high-efficiency reasoning with a 1M token context window and adaptive thinking by default.
Technical Specifications
Architecture specifications are undisclosed for proprietary models.
Resources
About Claude Sonnet 5
Anthropic's Claude Sonnet 5, released June 30, 2026, is built to be the most agentic Sonnet-class model, offering near-Opus 4.8 level intelligence, coding, and tool use at Sonnet pricing. It features a 1M token context window by default, 128k maximum output tokens, and adaptive thinking enabled by default.
Other Claude Sonnet 5 Models
- No related models available